Finding the Fourth Proportional to 50,004.14, 69,013.22 and 28,779.30

Step by Step Solution

1. Step 1: Write the proportion equation
   50,004.14 : 69,013.22 = 28,779.30 : x
2. Step 2: Convert to fraction form
   50,004.14/69,013.22 = 28,779.30/x
3. Step 3: Cross multiply
   50,004.14x = 69,013.22 × 28,779.30
4. Step 4: Simplify right side
   50,004.14x = 1,986,152,018.45
5. Step 5: Solve for x
   x = 1,986,152,018.45/50,004.14
6. Step 6: Final answer
   x = 39,719.76